https://connpass.com/event/174856/
- Edge Formation In Social Networks To Nurture Content Creators - OutfitNet: Fashion Outfit Recommendation with Attention-Based Multiple Instance Learning
CONFIDENTIAL©2020 Wantedly, Inc.WWW 2020 ΦϯϥΠϯൃදձApril 30, 2020 - ؔࠜ ༟ਓ
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CONFIDENTIAL©2020 Wantedly, Inc.1. Edge Formation In Social Networks To Nurture Content Creators2. OutfitNet: Fashion Outfit Recommendation with3. Graph Enhanced Representation Learning for News Recommendation࣍
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CONFIDENTIAL©2020 Wantedly, Inc.ٙɾײɾDual A/Bςετͷͱ͜ΖͰɺProducerͱViewerͷ͚ํ͕͔Βͳ͔ͬͨ- ͚͍ͦͦͯΔͷ͔ʁɾFollowerͷFollow͕4%ۙ͘ݮͬͯ͠·͍ͬͯΔͷେม?ɾOnline A/BςετΛͨ݁͠Ռɺ͔ͬ͠ΓͱContribution͕૿͍͑ͯΔͷૉΒ͍͠ɻ
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CONFIDENTIAL©2020 Wantedly, Inc.ͲΜͳจFashion Recommendationʹ͓͍ͯΞΠςϜ୯ମͰਪનͯ͋͛͠ΔͷͰͳ͘ɺOutfit(ίʔσΟωʔτ?)ͷΈΛֶश͠ɺͦͷΈʹ͋ͬͨOutiftΛਪન͍ͨ͠ɻ1. OutfitΛͱʹΞΠςϜͷrelevancyΛֶशͤ͞ΔΈ2. ϢʔβʔͷΈʹ͋ͬͨFashion outfitΛਪનMultiple instance learning (MIL)ͱͯ͠ղ͘ɻɾෳͷΞΠςϜʹରͯ͠Ұͭͷϥϕϧ͕͍͍ͭͯΔɾͲͷΞΠςϜ͕like/dislikeߟྀ͠ͳ͍
CONFIDENTIAL©2020 Wantedly, Inc.'BTIJPO*UFN3FMFWBODZOFUXPSL '*3ϑΝογϣϯΞΠςϜؒͷؔੑͷຒΊࠐΈֶशS: outfitͷsubsetx: itemͷrepresentationɾ xi (positive) : S + {x}ؚ͕·ΕΔoutfit͕ଘࡏ͢Δɾ xj (negative) : S + {x}ؚ͕·ΕΔoutfit͕ଘࡏ͠ͳ͍ಉ͡outfitʹೖΓͦ͏ͳΞΠςϜಉ࢜ͷڑ͕ۙ͘ͳΔΑ͏ʹֶश[email protected]ͱ4ͷSFMFWBODZTDPSF
CONFIDENTIAL©2020 Wantedly, Inc.'BTIJPO*UFN3FMFWBODZOFUXPSL '*3ΞΠςϜͷrepresentationͷt-SNEʹΑΔՄࢹԽɾFIR: ಉ͡ܥ౷(taste)ͷΞΠςϜ͕ɹɹɹۙ͘ʹஔ͞ΕΔΑ͏ʹݟ͑ΔɻɾDenseNet: VisualγϧΤοτʹґଘͯ͠ɹɹɹΞΠςϜ͕ஔ͞Ε͍ͯΔɻ
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CONFIDENTIAL©2020 Wantedly, Inc."UUFOUJPOͷޮՌOutfit 1Ͱπͷ૯ͯ͡େ͖͍͕ɺOutfit 2, 3Ͱখ͍͞ɻOutfit 3ͷηʔλʔπͷ͕େ͖͘ͳ͍ͬͯͯɺͦΕʹͬͯuser͕͚ΔAttentionେ͖͘ͳ͍ͬͯΔɻ→ ηʔλʔͷ৭ຯͱOutfit 1ͷ৭ຯ͕ࣅ͍ͯΔ͔ΒೲಘOutfit 1ͷΈUserͷΈͳOutfit
CONFIDENTIAL©2020 Wantedly, Inc.'JMM*O5IF#MBOL '*5#λεΫ͋ΔOutfitʹର͠ҰͭMaskΛ͠ɺϥϯμϜʹ3͖ͭ࣋ͬͯͯ4Λߦ͏ͱ͍͏λεΫɻɾFIRʹରͯ͠ͷλεΫ
CONFIDENTIAL©2020 Wantedly, Inc.1FSTPOBMJ[FE0VUGJU1SFEJDUJPOOutfit iͱOutfit jʹରͯ͠ɺͲͪΒͷOutfit͕Έ͔Λ֤Ϣʔβʔʹରͯ͠ٻΊ͍ͯ͘ɻ
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CONFIDENTIAL©2020 Wantedly, Inc.·ͱΊɾײ• FIRʹΑͬͯΞΠςϜಉ࢜ͷؔ࿈ੑΛֶश͢Δ͜ͱ͕Ͱ͖ͨɻ• OPʹΑͬͯoutfitͷΞΠςϜΛߟֶྀͯ͠श͢ΔϑϨʔϜϫʔΫΛ࡞Εͨɻ• FIRͱOPʹΑͬͯ fill-in-the-blank(FITB)taskͰ SOTAΛ֫ಘͰ͖ͨɻ• AttentionΛར༻ͯ͠Ϣʔβʔʹpersonalized͞ΕͨfashionΛ֫ಘͰ͖ͨɻ